Description of drawings
The present invention is described in detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the process flow diagram that the present invention makes the preferred embodiment of entity photo method.
Fig. 2 is an a person to be measured optical image schematic diagram data.
Fig. 3 be these optical image data according to a cylinder with reference to coordinate system, with the synoptic diagram of a preset distance layering.
Fig. 4 is the synoptic diagram that these optical image data are divided into a plurality of spaces face element.
Fig. 5 be with these space face prime numbers according to painted to these substrates, and superimposed these substrates schematic perspective view that is an entity photo.
Fig. 6 is the present invention's second preferred embodiment, the optical image data is made the schematic perspective view of substrate according to a Ka Shi coordinate layering.
Fig. 7 is the present invention's the 3rd preferred embodiment, and the optical image data according to a cylindrical seat target radially layered, are made the schematic perspective view of continuous substrate sheet.
Embodiment
Because how at present existing many research teachings obtain the 3-dimensional image data of determinand, such as the laser light beam is projected the determinand surface, and utilize reflected light as the inductor induction determinand surface of charge coupled device (CCD), and measure the bidimensional image data of calculating the determinand surface locations with how much, the laser light beam is again along another dimension scanning direction, just can obtain three-dimensional optical image data, comprise the three-dimensional coordinate and the color on determinand surface.
Perhaps, different angles direction with respect to determinand is set up many digital cameras, obtain two-dimension optical image data respectively from different visual angles, and with computer software contrast determinand surface difference, calculate the locus of each point, also can obtain as above determinand each point position, surface and color data.Because the technology of pick-up image is not feature of the present invention place, below repeats no more.
For purposes of illustration, determinand is an example with a personage, then the present invention make the entity photo method as shown in Figure 1, in step 11 by in the past three-dimensional optical image data acquisition technology, capture personage 9 profile as shown in Figure 2, and for for the purpose of being easy to explanation, virtual one with reference to coordinate system for defining personage 9 each several part position; In the present embodiment as Fig. 3 with a cylinder coordinate system as the reference coordinate system, any point P relatively position of this coordinate system initial point generally represents with distance r, angle θ and height z.The each several part that is obtained this personage 9 by above-mentioned prior art is corresponding to this stereoptics image data with reference to coordinate system.
In the step 12,, surface adjacent in the space and in a predetermined magnitude range is decided to be a space face element 90, can be divided into a plurality of spaces face element to personage 9 overall profile at this point according to acquisition personage 9 outline position data; So aforesaid optical image data will convert corresponding electric signal to according to each space face element and be exported or keep in.The electric signal of this moment also contains the information of representing the locus and representing this space face plain color coloured silk.
Step 13 is according to respectively this space face element is in this locus with reference to coordinate system in the electric signal, and separating with a preset distance is a plurality of layers; In the present embodiment for purposes of illustration, be to be one deck with identical z, whenever reach a level altitude Δ z apart and promptly be divided into higher one deck, so all space face elements can be included into respectively in a plurality of layers, and in each layer, the information of elevation dimension z can be left in the basket, but needs to handle the spatial information and the color information of distance, angle two dimension.
During step 14, peek order a plurality of printing opacity substrates 20,21,22 consistent with the layering number of spatial information ... substrate 20,21,22 ... area can be in full accord, with laser beam with substrate 20,21,22 ... the plain position of corresponding each space face etches one respectively and roughly is hemispheric depression, as shown in Figure 4, go out a plurality of little depressions corresponding to the substrate 20 of head with etched, and each depression is jointly around the profile that goes out a certain height of similar these personage's 9 heads; The substrate 21 of corresponding upper body and the substrate 22 of shank also are to take identical method.
To step 15, according to by the color information in the electric signal of the plain optical image data-switching of each space face, insert the pigment of the plain optical image data of corresponding each space face respectively at each little depression, make each little depression be colored as a color dot.Step 16 subsequently with each substrate 20,21,22 ... according to height order, the material that coating and substrate refractive index are complementary on each substrate and form an adhesive coating, the substrate that will be positioned at the top again is bonding, constitutes an entity photo that should personage's 9 profiles.
Because the section of each lateral margin of substrate may be uneven, makes light to penetrate smoothly, causes the not visible phenomenon of this face; Can to be coated on uneven place with refractive index and substrate matched materials in order addressing this problem then, to make this face smoothly and not produce diffusion.In addition, for the marginal portion after each substrate is superimposed coats, it is unlikelyly peeled off easily, can be step 17 be covered in these substrates after superimposed with the coating of above-mentioned adhesion outside, constitute and make the level and smooth clad in side, after treating that clad is fixing, just can obtain as shown in Figure 5 a complete entity photo corresponding to original personage's 9 profiles.
Because the many little color dot in the substrate has its volume, under light source irradiation, light beam sees through substrate and shines to little color dot, and through reflecting the brilliance of color dot itself, the observer can obtain and original character contour to be measured, color scaled down version image data without the slightest difference.Can understand easily as being familiar with this technology personage, aforementioned little depression does not limit each depression and inserts single color pigment, can obtainable different colours according to different angles and insert respectively yet; In addition, in order to simplify procedures, to reduce cost, also can be without the laser-induced thermal etching substrate, the mode with printing of changing directly is printed on the appropriate location of each substrate with pigment or to reach painted purpose such as modes such as ink-jets.
Certainly, the selection of above-mentioned reference coordinate system is not unalterable, so as shown in Figure 6, will change the Ka Shi coordinate into reference to coordinate system, is axes of coordinates with X, Y, Z, then can be arbitrarily by X-axis, Y-axis or Z-direction layering, and finish this entity photo according to said method.
Consideration is with reference to coordinate with the cylinder coordinate, if when the plain layering of space face, not adopting fixing is the benchmark of layering apart from r, and changes the cumulative mode with r, whenever angle θ turns over 2 π, then makes r increase fixed thickness Δ r; Thus, as shown in Figure 7, the edge of each layering just can be connected with an outer layering, and making does not need cutting between used substrate, and it is superimposed to reel after can directly handling continuously again.As if the entity photo that is contracted to 30 centimeters high with above-mentioned personage is example, and about 2000 square centimeters of the total surface area after it dwindles is equivalent to high approximately 25 centimeters, wide 80 centimeters area, with general color printer, can finish in tens of seconds.In other words, can finish the entity photo of a solid as the present manufacturing speed of visible photo sticker everywhere.
Via description of the invention, not only can obtain to have more the entity photo of actual stereoeffect, and make and to present complete full-color rich colors in its color dot and change, especially thus produce entity photo with actual stereoeffect, no matter all can meet popular requirement, fully realize order of the present invention with regard to price, quality, speed.